30905840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{241}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 82822080

約数和(自身を除く): 51916240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 241, 280, 458, 482, 560, 916, 964, 1145, 1205, 1603, 1687, 1832, 1928, 2290, 2410, 3206, 3374, 3664, 3856, 4580, 4820, 6412, 6748, 8015, 8435, 9160, 9640, 12824, 13496, 16030, 16870, 18320, 19280, 25648, 26992, 32060, 33740, 55189, 64120, 67480, 110378, 128240, 134960, 220756, 275945, 386323, 441512, 551890, 772646, 883024, 1103780, 1545292, 1931615, 2207560, 3090584, 3863230, 4415120, 6181168, 7726460, 15452920, 30905840]

約数ペア:

[(1, 30905840), (2, 15452920), (4, 7726460), (5, 6181168), (7, 4415120), (8, 3863230), (10, 3090584), (14, 2207560), (16, 1931615), (20, 1545292), (28, 1103780), (35, 883024), (40, 772646), (56, 551890), (70, 441512), (80, 386323), (112, 275945), (140, 220756), (229, 134960), (241, 128240), (280, 110378), (458, 67480), (482, 64120), (560, 55189), (916, 33740), (964, 32060), (1145, 26992), (1205, 25648), (1603, 19280), (1687, 18320), (1832, 16870), (1928, 16030), (2290, 13496), (2410, 12824), (3206, 9640), (3374, 9160), (3664, 8435), (3856, 8015), (4580, 6748), (4820, 6412)]